I have a 39 gallon aquarium that I am using for a sump and I am wondering if I could drill a hole in the side near the top for a float valve. I need to drill about a 1/2" hole to mount the float valve. If this is simple, let me know.
If there is a chance I will break it, I might opt for a different float. I have a Kent float right now, but I saw autotopoff.com has the kind that hang on the side.
Any help would be appreciated!!
150 Gallon FOWLR